package com.itheima.reggie.config;

import com.itheima.reggie.common.JacksonObjectMapper;
import com.itheima.reggie.interceptor.LoginCheckInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.ArrayList;
import java.util.List;

@Configuration //配置类,配置web静态资源相关的设置
public class ReggieWebMvcConfig implements WebMvcConfigurer {
	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		registry.addResourceHandler("/backend/**")
				.addResourceLocations("classpath:/backend/");
	}
	
	@Autowired
	private LoginCheckInterceptor loginCheckInterceptor;
	
	@Override
	public void addInterceptors(InterceptorRegistry registry) {
		ArrayList<String> urls = new ArrayList<>();
		urls.add("/backend/**");
		urls.add("/error");
		urls.add("/employee/login");
		urls.add("/employee/logout");
		
		registry.addInterceptor(loginCheckInterceptor)
				.addPathPatterns("/**")
				.excludePathPatterns(urls);
		
	}
	
	public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
		//	创建消息转换器对象
		
		MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
		
		//	设置对象转换器,底层使用Jackson将java 对象转换为json
		mappingJackson2HttpMessageConverter.setObjectMapper(new JacksonObjectMapper());
		//	将上面的消息转换器对象追加到mvc框架的转换器集合中
		converters.add(0, mappingJackson2HttpMessageConverter);
		
		
		//扩展mvc框架的消息转换器
		// public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
		// 	//创建消息转换器对象
		// 	MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
		// 	//设置对象转换器，底层使用Jackson将Java对象转为json
		// 	messageConverter.setObjectMapper(new JacksonObjectMapper());
		// 	//将上面的消息转换器对象追加到mvc框架的转换器集合中
		// 	converters.add(0, messageConverter);
	}
}
